error C2679: binary '=' : no operator found which takes a right-hand operand of type

I try to implement a matrix template class which inherits the vector of vectors.
The message I get: "error C2679: binary '=' : no operator found which takes a right-hand operand of type 'const Vector<T> *' (or there is no acceptable conversion)" (When I call the alternate matrix constructor, at the line "this = &h;".)
Any thoughts...? Thanks a lot in advance.